pbrd/pbr_vty.c

   1 /*
   2  * PBR - vty code
   3  * Copyright (C) 2018 Cumulus Networks, Inc.
   4  *               Donald Sharp
   5  *
   6  * FRR is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by the
   8  * Free Software Foundation; either version 2, or (at your option) any
   9  * later version.
  10  *
  11  * FRR is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; see the file COPYING; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  19  */
  20 #include <zebra.h>
  21
  22 #include "vty.h"
  23 #include "command.h"
  24 #include "prefix.h"
  25 #include "vrf.h"
  26 #include "nexthop.h"
  27 #include "nexthop_group.h"
  28 #include "log.h"
  29 #include "debug.h"
  30 #include "pbr.h"
  31
  32 #include "pbrd/pbr_nht.h"
  33 #include "pbrd/pbr_map.h"
  34 #include "pbrd/pbr_zebra.h"
  35 #include "pbrd/pbr_vty.h"
  36 #include "pbrd/pbr_debug.h"
  37 #ifndef VTYSH_EXTRACT_PL
  38 #include "pbrd/pbr_vty_clippy.c"
  39 #endif
  40
  41 DEFUN_NOSH(pbr_map, pbr_map_cmd, "pbr-map WORD seq (1-700)",
  42            "Create pbr-map or enter pbr-map command mode\n"
  43            "The name of the PBR MAP\n"
  44            "Sequence to insert in existing pbr-map entry\n"
  45            "Sequence number\n")
  46 {
  47         const char *pbrm_name = argv[1]->arg;
  48         uint32_t seqno = atoi(argv[3]->arg);
  49         struct pbr_map_sequence *pbrms;
  50
  51         pbrms = pbrms_get(pbrm_name, seqno);
  52         VTY_PUSH_CONTEXT(PBRMAP_NODE, pbrms);
  53
  54         return CMD_SUCCESS;
  55 }
  56
  57 DEFUN_NOSH(no_pbr_map, no_pbr_map_cmd, "no pbr-map WORD [seq (1-700)]",
  58            NO_STR
  59            "Delete pbr-map\n"
  60            "The name of the PBR MAP\n"
  61            "Sequence to delete from existing pbr-map entry\n"
  62            "Sequence number\n")
  63 {
  64         const char *pbrm_name = argv[2]->arg;
  65         uint32_t seqno = 0;
  66         struct pbr_map *pbrm = pbrm_find(pbrm_name);
  67         struct pbr_map_sequence *pbrms;
  68         struct listnode *node, *next_node;
  69
  70         if (argc > 3)
  71                 seqno = atoi(argv[4]->arg);
  72
  73         if (!pbrm) {
  74                 vty_out(vty, "pbr-map %s not found\n", pbrm_name);
  75                 return CMD_SUCCESS;
  76         }
  77
  78         for (ALL_LIST_ELEMENTS(pbrm->seqnumbers, node, next_node, pbrms)) {
  79                 if (seqno && pbrms->seqno != seqno)
  80                         continue;
  81
  82                 pbr_map_delete(pbrms);
  83         }
  84
  85         return CMD_SUCCESS;
  86 }
  87
  88 DEFPY(pbr_set_table_range,
  89       pbr_set_table_range_cmd,
  90       "[no] pbr table range (10000-4294966272)$lb (10000-4294966272)$ub",
  91       NO_STR
  92       PBR_STR
  93       "Set table ID range\n"
  94       "Set table ID range\n"
  95       "Lower bound for table ID range\n"
  96       "Upper bound for table ID range\n")
  97 {
  98         /* upper bound is 2^32 - 2^10 */
  99         int ret = CMD_WARNING;
 100         const int minrange = 1000;
 101
 102         /* validate given bounds */
 103         if (lb > ub)
 104                 vty_out(vty, "%% Lower bound must be less than upper bound\n");
 105         else if (ub - lb < minrange)
 106                 vty_out(vty, "%% Range breadth must be at least %d\n", minrange);
 107         else {
 108                 ret = CMD_SUCCESS;
 109                 pbr_nht_set_tableid_range((uint32_t) lb, (uint32_t) ub);
 110         }
 111
 112         return ret;
 113 }
 114
 115
 116 DEFPY(pbr_map_match_src, pbr_map_match_src_cmd,
 117         "[no] match src-ip <A.B.C.D/M|X:X::X:X/M>$prefix",
 118         NO_STR
 119         "Match the rest of the command\n"
 120         "Choose the src ip or ipv6 prefix to use\n"
 121         "v4 Prefix\n"
 122         "v6 Prefix\n")
 123 {
 124         struct pbr_map_sequence *pbrms = VTY_GET_CONTEXT(pbr_map_sequence);
 125
 126         pbrms->family = prefix->family;
 127
 128         if (!no) {
 129                 if (prefix_same(pbrms->src, prefix))
 130                         return CMD_SUCCESS;
 131
 132                 if (!pbrms->src)
 133                         pbrms->src = prefix_new();
 134                 prefix_copy(pbrms->src, prefix);
 135         } else {
 136                 prefix_free(pbrms->src);
 137                 pbrms->src = 0;
 138         }
 139
 140         pbr_map_check(pbrms);
 141
 142         return CMD_SUCCESS;
 143 }
 144
 145 DEFPY(pbr_map_match_dst, pbr_map_match_dst_cmd,
 146         "[no] match dst-ip <A.B.C.D/M|X:X::X:X/M>$prefix",
 147         NO_STR
 148         "Match the rest of the command\n"
 149         "Choose the src ip or ipv6 prefix to use\n"
 150         "v4 Prefix\n"
 151         "v6 Prefix\n")
 152 {
 153         struct pbr_map_sequence *pbrms = VTY_GET_CONTEXT(pbr_map_sequence);
 154
 155         pbrms->family = prefix->family;
 156
 157         if (!no) {
 158                 if (prefix_same(pbrms->dst, prefix))
 159                         return CMD_SUCCESS;
 160
 161                 if (!pbrms->dst)
 162                         pbrms->dst = prefix_new();
 163                 prefix_copy(pbrms->dst, prefix);
 164         } else {
 165                 prefix_free(pbrms->dst);
 166                 pbrms->dst = NULL;
 167         }
 168
 169         pbr_map_check(pbrms);
 170
 171         return CMD_SUCCESS;
 172 }
 173
 174 DEFPY(pbr_map_nexthop_group, pbr_map_nexthop_group_cmd,
 175         "[no] set nexthop-group NAME$name",
 176         NO_STR
 177         "Set for the PBR-MAP\n"
 178         "nexthop-group to use\n"
 179         "The name of the nexthop-group\n")
 180 {
 181         struct pbr_map_sequence *pbrms = VTY_GET_CONTEXT(pbr_map_sequence);
 182         struct nexthop_group_cmd *nhgc;
 183
 184         if (pbrms->nhg) {
 185                 vty_out(vty,
 186                         "A `set nexthop XX` command already exists, please remove that first\n");
 187                 return CMD_WARNING_CONFIG_FAILED;
 188         }
 189
 190         nhgc = nhgc_find(name);
 191         if (!nhgc) {
 192                 vty_out(vty, "Specified nexthop-group %s does not exist\n",
 193                         name);
 194                 vty_out(vty, "PBR-MAP will not be applied until it is created\n");
 195         }
 196
 197         if (no) {
 198                 if (pbrms->nhgrp_name && strcmp(name, pbrms->nhgrp_name) == 0)
 199                         pbr_map_delete_nexthop_group(pbrms);
 200                 else {
 201                         vty_out(vty,
 202                                 "Nexthop Group specified: %s does not exist to remove",
 203                                 name);
 204                         return CMD_WARNING_CONFIG_FAILED;
 205                 }
 206         } else {
 207                 if (pbrms->nhgrp_name) {
 208                         if (strcmp(name, pbrms->nhgrp_name) != 0) {
 209                                 vty_out(vty,
 210                                         "Please delete current nexthop group before modifying current one");
 211                                 return CMD_WARNING_CONFIG_FAILED;
 212                         }
 213
 214                         return CMD_SUCCESS;
 215                 }
 216                 pbrms->nhgrp_name = XSTRDUP(MTYPE_TMP, name);
 217                 pbr_map_check(pbrms);
 218         }
 219
 220         return CMD_SUCCESS;
 221 }
 222
 223 DEFPY(pbr_map_nexthop, pbr_map_nexthop_cmd,
 224       "[no] set nexthop <A.B.C.D|X:X::X:X>$addr [INTERFACE]$intf [nexthop-vrf NAME$name]",
 225       NO_STR
 226       "Set for the PBR-MAP\n"
 227       "Specify one of the nexthops in this map\n"
 228       "v4 Address\n"
 229       "v6 Address\n"
 230       "Interface to use\n"
 231       "If the nexthop is in a different vrf tell us\n"
 232       "The nexthop-vrf Name\n")
 233 {
 234         struct pbr_map_sequence *pbrms = VTY_GET_CONTEXT(pbr_map_sequence);
 235         struct vrf *vrf;
 236         struct nexthop nhop;
 237         struct nexthop *nh;
 238
 239         if (pbrms->nhgrp_name) {
 240                 vty_out(vty,
 241                         "Please unconfigure the nexthop group before adding an individual nexthop");
 242                 return CMD_WARNING_CONFIG_FAILED;
 243         }
 244
 245         if (name)
 246                 vrf = vrf_lookup_by_name(name);
 247         else
 248                 vrf = vrf_lookup_by_id(VRF_DEFAULT);
 249
 250         if (!vrf) {
 251                 vty_out(vty, "Specified: %s is non-existent\n", name);
 252                 return CMD_WARNING_CONFIG_FAILED;
 253         }
 254
 255         memset(&nhop, 0, sizeof(nhop));
 256         nhop.vrf_id = vrf->vrf_id;
 257
 258         /*
 259          * Make SA happy.  CLIPPY is not going to give us a NULL
 260          * addr.
 261          */
 262         assert(addr);
 263         if (addr->sa.sa_family == AF_INET) {
 264                 nhop.gate.ipv4.s_addr = addr->sin.sin_addr.s_addr;
 265                 if (intf) {
 266                         nhop.type = NEXTHOP_TYPE_IPV4_IFINDEX;
 267                         nhop.ifindex = ifname2ifindex(intf, vrf->vrf_id);
 268                         if (nhop.ifindex == IFINDEX_INTERNAL) {
 269                                 vty_out(vty,
 270                                         "Specified Intf %s does not exist in vrf: %s\n",
 271                                         intf, vrf->name);
 272                                 return CMD_WARNING_CONFIG_FAILED;
 273                         }
 274                 } else
 275                         nhop.type = NEXTHOP_TYPE_IPV4;
 276         } else {
 277                 memcpy(&nhop.gate.ipv6, &addr->sin6.sin6_addr, 16);
 278                 if (intf) {
 279                         nhop.type = NEXTHOP_TYPE_IPV6_IFINDEX;
 280                         nhop.ifindex = ifname2ifindex(intf, vrf->vrf_id);
 281                         if (nhop.ifindex == IFINDEX_INTERNAL) {
 282                                 vty_out(vty,
 283                                         "Specified Intf %s does not exist in vrf: %s\n",
 284                                         intf, vrf->name);
 285                                 return CMD_WARNING_CONFIG_FAILED;
 286                         }
 287                 } else {
 288                         if (IN6_IS_ADDR_LINKLOCAL(&nhop.gate.ipv6)) {
 289                                 vty_out(vty,
 290                                         "Specified a v6 LL with no interface, rejecting\n");
 291                                 return CMD_WARNING_CONFIG_FAILED;
 292                         }
 293                         nhop.type = NEXTHOP_TYPE_IPV6;
 294                 }
 295         }
 296
 297         if (pbrms->nhg)
 298                 nh = nexthop_exists(pbrms->nhg, &nhop);
 299         else {
 300                 char buf[PBR_NHC_NAMELEN];
 301
 302                 if (no) {
 303                         vty_out(vty, "No nexthops to delete");
 304                         return CMD_WARNING_CONFIG_FAILED;
 305                 }
 306
 307                 pbrms->nhg = nexthop_group_new();
 308                 pbrms->internal_nhg_name =
 309                         XSTRDUP(MTYPE_TMP,
 310                                 pbr_nht_nexthop_make_name(pbrms->parent->name,
 311                                                           PBR_NHC_NAMELEN,
 312                                                           pbrms->seqno,
 313                                                           buf));
 314                 nh = NULL;
 315         }
 316
 317         if (no) {
 318                 if (nh)
 319                         pbr_nht_delete_individual_nexthop(pbrms);
 320         } else if (!nh) {
 321
 322                 if (pbrms->nhg->nexthop) {
 323                         vty_out(vty,
 324                                 "If you would like more than one nexthop please use nexthop-groups");
 325                         return CMD_WARNING_CONFIG_FAILED;
 326                 }
 327
 328                 /* must be adding new nexthop since !no and !nexthop_exists */
 329                 nh = nexthop_new();
 330
 331                 memcpy(nh, &nhop, sizeof(nhop));
 332                 nexthop_add(&pbrms->nhg->nexthop, nh);
 333
 334                 pbr_nht_add_individual_nexthop(pbrms);
 335                 pbr_map_check(pbrms);
 336         }
 337
 338         return CMD_SUCCESS;
 339 }
 340
 341 DEFPY (pbr_policy,
 342         pbr_policy_cmd,
 343         "[no] pbr-policy NAME$mapname",
 344         NO_STR
 345         "Policy to use\n"
 346         "Name of the pbr-map to apply\n")
 347 {
 348         VTY_DECLVAR_CONTEXT(interface, ifp);
 349         struct pbr_map *pbrm, *old_pbrm;
 350         struct pbr_interface *pbr_ifp = ifp->info;
 351
 352         pbrm = pbrm_find(mapname);
 353
 354         if (!pbr_ifp) {
 355                 /* we don't want one and we don't have one, so... */
 356                 if (no)
 357                         return CMD_SUCCESS;
 358
 359                 /* Some one could have fat fingered the interface name */
 360                 pbr_ifp = pbr_if_new(ifp);
 361         }
 362
 363         if (no) {
 364                 if (strcmp(pbr_ifp->mapname, mapname) == 0) {
 365                         pbr_ifp->mapname[0] = '\0';
 366                         if (pbrm)
 367                                 pbr_map_interface_delete(pbrm, ifp);
 368                 }
 369         } else {
 370                 if (strcmp(pbr_ifp->mapname, "") != 0) {
 371                         old_pbrm = pbrm_find(pbr_ifp->mapname);
 372                         if (old_pbrm)
 373                                 pbr_map_interface_delete(old_pbrm, ifp);
 374                 }
 375                 snprintf(pbr_ifp->mapname, sizeof(pbr_ifp->mapname),
 376                          "%s", mapname);
 377                 if (pbrm)
 378                         pbr_map_add_interface(pbrm, ifp);
 379         }
 380
 381         return CMD_SUCCESS;
 382 }
 383
 384 DEFPY (show_pbr,
 385         show_pbr_cmd,
 386         "show pbr",
 387         SHOW_STR
 388         PBR_STR)
 389 {
 390         pbr_nht_write_table_range(vty);
 391         pbr_nht_write_rule_range(vty);
 392
 393         return CMD_SUCCESS;
 394 }
 395
 396 DEFPY (show_pbr_map,
 397         show_pbr_map_cmd,
 398         "show pbr map [NAME$name] [detail$detail]",
 399         SHOW_STR
 400         PBR_STR
 401         "PBR Map\n"
 402         "PBR Map Name\n"
 403         "Detailed information\n")
 404 {
 405         struct pbr_map_sequence *pbrms;
 406         struct pbr_map *pbrm;
 407         struct listnode *node;
 408         char buf[PREFIX_STRLEN];
 409         char rbuf[64];
 410
 411         RB_FOREACH (pbrm, pbr_map_entry_head, &pbr_maps) {
 412                 if (name && strcmp(name, pbrm->name) != 0)
 413                         continue;
 414
 415                 vty_out(vty, "  pbr-map %s valid: %d\n", pbrm->name,
 416                         pbrm->valid);
 417
 418                 for (ALL_LIST_ELEMENTS_RO(pbrm->seqnumbers, node, pbrms)) {
 419                         if (pbrms->reason)
 420                                 pbr_map_reason_string(pbrms->reason, rbuf,
 421                                                       sizeof(rbuf));
 422                         vty_out(vty,
 423                                 "    Seq: %u rule: %u Installed: %" PRIu64 "(%u) Reason: %s\n",
 424                                 pbrms->seqno, pbrms->ruleno, pbrms->installed,
 425                                 pbrms->unique, pbrms->reason ? rbuf : "Valid");
 426
 427                         if (pbrms->src)
 428                                 vty_out(vty, "\tSRC Match: %s\n",
 429                                         prefix2str(pbrms->src, buf,
 430                                                    sizeof(buf)));
 431                         if (pbrms->dst)
 432                                 vty_out(vty, "\tDST Match: %s\n",
 433                                         prefix2str(pbrms->dst, buf,
 434                                                    sizeof(buf)));
 435
 436                         if (pbrms->nhgrp_name) {
 437                                 vty_out(vty,
 438                                         "\tNexthop-Group: %s(%u) Installed: %u(%d)\n",
 439                                         pbrms->nhgrp_name,
 440                                         pbr_nht_get_table(pbrms->nhgrp_name),
 441                                         pbrms->nhs_installed,
 442                                         pbr_nht_get_installed(
 443                                                 pbrms->nhgrp_name));
 444                         } else if (pbrms->nhg) {
 445                                 vty_out(vty, "     ");
 446                                 nexthop_group_write_nexthop(
 447                                         vty, pbrms->nhg->nexthop);
 448                                 vty_out(vty,
 449                                         "\tInstalled: %u(%d) Tableid: %d\n",
 450                                         pbrms->nhs_installed,
 451                                         pbr_nht_get_installed(
 452                                                 pbrms->internal_nhg_name),
 453                                         pbr_nht_get_table(
 454                                                 pbrms->internal_nhg_name));
 455                         } else {
 456                                 vty_out(vty,
 457                                         "\tNexthop-Group: Unknown Installed: 0(0)\n");
 458                         }
 459                 }
 460         }
 461         return CMD_SUCCESS;
 462 }
 463
 464 DEFPY(show_pbr_nexthop_group,
 465       show_pbr_nexthop_group_cmd,
 466       "show pbr nexthop-groups [WORD$word]",
 467       SHOW_STR
 468       PBR_STR
 469       "Nexthop Groups\n"
 470       "Optional Name of the nexthop group\n")
 471 {
 472         pbr_nht_show_nexthop_group(vty, word);
 473
 474         return CMD_SUCCESS;
 475 }
 476
 477 DEFPY (show_pbr_interface,
 478         show_pbr_interface_cmd,
 479         "show pbr interface [NAME$name]",
 480         SHOW_STR
 481         PBR_STR
 482         "PBR Interface\n"
 483         "PBR Interface Name\n")
 484 {
 485         struct interface *ifp;
 486         struct vrf *vrf;
 487         struct pbr_interface *pbr_ifp;
 488
 489         RB_FOREACH(vrf, vrf_name_head, &vrfs_by_name) {
 490                 FOR_ALL_INTERFACES(vrf, ifp) {
 491                         struct pbr_map *pbrm;
 492
 493                         if (!ifp->info)
 494                                 continue;
 495
 496                         if (name && strcmp(ifp->name, name) != 0)
 497                                 continue;
 498
 499                         pbr_ifp = ifp->info;
 500
 501                         if (strcmp(pbr_ifp->mapname, "") == 0)
 502                                 continue;
 503
 504                         pbrm = pbrm_find(pbr_ifp->mapname);
 505                         vty_out(vty, "  %s(%d) with pbr-policy %s", ifp->name,
 506                                 ifp->ifindex, pbr_ifp->mapname);
 507                         if (!pbrm)
 508                                 vty_out(vty, " (map doesn't exist)");
 509                         vty_out(vty, "\n");
 510                 }
 511         }
 512
 513         return CMD_SUCCESS;
 514 }
 515
 516 /* PBR debugging CLI ------------------------------------------------------- */
 517
 518 static struct cmd_node debug_node = {DEBUG_NODE, "", 1};
 519
 520 DEFPY(debug_pbr,
 521       debug_pbr_cmd,
 522       "[no] debug pbr [{map$map|zebra$zebra|nht$nht|events$events}]",
 523       NO_STR
 524       DEBUG_STR
 525       PBR_STR
 526       "Policy maps\n"
 527       "PBRD <-> Zebra communications\n"
 528       "Nexthop tracking\n"
 529       "Events\n")
 530 {
 531         uint32_t mode = DEBUG_NODE2MODE(vty->node);
 532
 533         if (map)
 534                 DEBUG_MODE_SET(&pbr_dbg_map, mode, !no);
 535         if (zebra)
 536                 DEBUG_MODE_SET(&pbr_dbg_zebra, mode, !no);
 537         if (nht)
 538                 DEBUG_MODE_SET(&pbr_dbg_nht, mode, !no);
 539         if (events)
 540                 DEBUG_MODE_SET(&pbr_dbg_event, mode, !no);
 541
 542         /* no specific debug --> act on all of them */
 543         if (strmatch(argv[argc - 1]->text, "pbr"))
 544                 pbr_debug_set_all(mode, !no);
 545
 546         return CMD_SUCCESS;
 547 }
 548
 549 DEFUN_NOSH(show_debugging_pbr,
 550            show_debugging_pbr_cmd,
 551            "show debugging [pbr]",
 552            SHOW_STR
 553            DEBUG_STR
 554            PBR_STR)
 555 {
 556         vty_out(vty, "PBR debugging status:\n");
 557
 558         pbr_debug_config_write_helper(vty, false);
 559
 560         return CMD_SUCCESS;
 561 }
 562
 563 /* ------------------------------------------------------------------------- */
 564
 565
 566 static struct cmd_node interface_node = {
 567         INTERFACE_NODE, "%s(config-if)# ", 1 /* vtysh ? yes */
 568 };
 569
 570 static int pbr_interface_config_write(struct vty *vty)
 571 {
 572         struct interface *ifp;
 573         struct vrf *vrf;
 574
 575         RB_FOREACH (vrf, vrf_name_head, &vrfs_by_name) {
 576                 FOR_ALL_INTERFACES (vrf, ifp) {
 577                         if (vrf->vrf_id == VRF_DEFAULT)
 578                                 vty_frame(vty, "interface %s\n", ifp->name);
 579                         else
 580                                 vty_frame(vty, "interface %s vrf %s\n",
 581                                           ifp->name, vrf->name);
 582
 583                         if (ifp->desc)
 584                                 vty_out(vty, " description %s\n", ifp->desc);
 585
 586                         pbr_map_write_interfaces(vty, ifp);
 587
 588                         vty_endframe(vty, "!\n");
 589                 }
 590         }
 591
 592         return 1;
 593 }
 594
 595 /* PBR map node structure. */
 596 static struct cmd_node pbr_map_node = {PBRMAP_NODE, "%s(config-pbr-map)# ", 1};
 597
 598 static int pbr_vty_map_config_write_sequence(struct vty *vty,
 599                                              struct pbr_map *pbrm,
 600                                              struct pbr_map_sequence *pbrms)
 601 {
 602         char buff[PREFIX_STRLEN];
 603
 604         vty_out(vty, "pbr-map %s seq %u\n", pbrm->name, pbrms->seqno);
 605
 606         if (pbrms->src)
 607                 vty_out(vty, "  match src-ip %s\n",
 608                         prefix2str(pbrms->src, buff, sizeof(buff)));
 609
 610         if (pbrms->dst)
 611                 vty_out(vty, "  match dst-ip %s\n",
 612                         prefix2str(pbrms->dst, buff, sizeof(buff)));
 613
 614         if (pbrms->nhgrp_name)
 615                 vty_out(vty, "  set nexthop-group %s\n", pbrms->nhgrp_name);
 616
 617         if (pbrms->nhg) {
 618                 vty_out(vty, "  set ");
 619                 nexthop_group_write_nexthop(vty, pbrms->nhg->nexthop);
 620         }
 621
 622         vty_out(vty, "!\n");
 623         return 1;
 624 }
 625
 626 static int pbr_vty_map_config_write(struct vty *vty)
 627 {
 628         struct pbr_map *pbrm;
 629
 630         pbr_nht_write_table_range(vty);
 631         pbr_nht_write_rule_range(vty);
 632
 633         RB_FOREACH(pbrm, pbr_map_entry_head, &pbr_maps) {
 634                 struct pbr_map_sequence *pbrms;
 635                 struct listnode *node;
 636
 637                 for (ALL_LIST_ELEMENTS_RO(pbrm->seqnumbers, node, pbrms))
 638                         pbr_vty_map_config_write_sequence(vty, pbrm, pbrms);
 639         }
 640
 641         return 1;
 642 }
 643
 644 void pbr_vty_init(void)
 645 {
 646         install_node(&interface_node,
 647                      pbr_interface_config_write);
 648         if_cmd_init();
 649
 650         install_node(&pbr_map_node,
 651                      pbr_vty_map_config_write);
 652
 653         /* debug */
 654         install_node(&debug_node, pbr_debug_config_write);
 655         install_element(VIEW_NODE, &debug_pbr_cmd);
 656         install_element(CONFIG_NODE, &debug_pbr_cmd);
 657         install_element(VIEW_NODE, &show_debugging_pbr_cmd);
 658
 659         install_default(PBRMAP_NODE);
 660
 661         install_element(CONFIG_NODE, &pbr_map_cmd);
 662         install_element(CONFIG_NODE, &no_pbr_map_cmd);
 663         install_element(CONFIG_NODE, &pbr_set_table_range_cmd);
 664         install_element(INTERFACE_NODE, &pbr_policy_cmd);
 665         install_element(PBRMAP_NODE, &pbr_map_match_src_cmd);
 666         install_element(PBRMAP_NODE, &pbr_map_match_dst_cmd);
 667         install_element(PBRMAP_NODE, &pbr_map_nexthop_group_cmd);
 668         install_element(PBRMAP_NODE, &pbr_map_nexthop_cmd);
 669         install_element(VIEW_NODE, &show_pbr_cmd);
 670         install_element(VIEW_NODE, &show_pbr_map_cmd);
 671         install_element(VIEW_NODE, &show_pbr_interface_cmd);
 672         install_element(VIEW_NODE, &show_pbr_nexthop_group_cmd);
 673 }